Tooth paste dispenser having toothbrush-receiving recesses



March 31, 1953 p M BRYAN-r 2,633,271

TOOTH PASTE DISPENSER HAVING TOOTHBRUSH-RECEIVING RECESSES Filed Nov.l5, 1951 NVE/vra@ fZ PAUL @Rm/v7 "n BY M A r ron/VEV Patented Mar. 31,1953 UNITED STATES PATENT OFFICE TOOTH PASTE DISPENSER HAVING TOOTH-BRUSH-RECEIVING RECESSES Paul M. Bryant, Akron, Ohio ApplicationNovember 15, 1951, Serial No. 256,471

11 Claims. l

The invention relates to a tooth paste dispenser and the general objectof the invention is to provide a dispenser wherein a toothbrush can beinserted in a recess and supplied with a suitable quantity of toothpaste by a simple manipulation of parts of the dispenser. More specicobjects of the invention are to provide various features of mechanicalconstruction for attaining the said general object.

In the drawing I have shown in detail two embodiments of the invention,but it will be understood that various changes may be made from theconstructions shown, and that the drawing is not to be construed asdefining or limiting the scope of the invention, the claims forming apart of this speciiication being relied upon for that purpose.

Of the drawing:

Fig. 1 is a perspective view showing a tooth paste dispenser embodyingthe invention and illustrating the manner of use.

Fig. 2 is a left end view on an enlarged scale.

Fig. 3 is a longitudinal vertical sectional view taken along the line3--3 of Fig. 2.

Fig. 4 is a transverse Vertical sectional view taken along the line 4-4of Fig. 3.

Figs. 5 and 6 are side and end views respectively of one toothbrushunit.

Fig. 'I is a fragmentary longitudinal sectional view taken along theline 'I-I of Fig. 4.

Figs. 8 to l5 are fragmentary transverse sectional views similar to thelower portion of Fig. 4, but showing the housing in various positionswith respect to the lowermost toothbrush unit shown in the said Fig. 4.

Fig. 16 is a fragmentary longitudinal vertical sectional view on areduced scale similar to the right portion of Fig. 3 but showing analternative embodiment of the invention.

Referring to the drawing, more particularly Figs. l to 7 thereof, Ill isa main housing having at least one cylindrical chamber I2 therein whichchamber is open at a face I3 of the housing, this being shown as theleft face. Preferably the housing has a plurality of similar chambershaving their axes parallel with each other and equally spaced about amain central axis. There may be variation as to the number of chambers,but as shown there are four chambers I2, I4, I6 and I8. The housing Illmay be cylindrical in exterior shape but for economy'of material it ispreferably shaped in erosssection vas shown in Figs. 2 and 4. Preferablythe housing I has a peripheral rib I9 which projects toward the leftbeyond the face I3` A generally cylindrical toothbrush unit is providedfor each housing chamber, the unit being relatively rotatable in thechamber. When there are four chambers, there are four toothbrush units20, 22, 24 and 25.

The housing IIJ preferably has a hub 28 at its right end, the said hubbeing concentric with the central axis of the housing and beingrotatable in a bearing aperture in a member forming a part of a tubeenclosure. The exterior of the hub 28 and the interior of the aperturein the member 38 are annularly grooved to receive a snap ring 32 whichprevents relative longitudinal movement of the hub and housing whilepermitting relative rotative movement.

The housing I0 is provided with a passageway including a centrallongitudinal hole 34 communicating at one end with the side of at leastone cylindrical chamber and adapted at the other end for connection withthe threaded portion of a tooth paste tube. The hole 34 extends throughthe hub 28 and it is interiorly threaded at 38 to receive and t thethreaded end of a tooth paste tube A. When there is a plurality ofchambers, such as I2, I4, I6 and I8, the passageway has branchesextending respectively to the sides of the several chambers. As shown,the central longitudinal hole 34 is closed at its left end, and thehousing is provided with a plurality of rows of transverse holes 36, 36.The holes 36, 3B in the several rows extend from the central hole 34 tothe inner sides of the respective chambers I2, I4, I6 and I8..

The member 30 is provided with va peripheral flange 48 which isinteriorly threaded at 42. A cylindrical tube enclosing member 44 isprovided which is closed at its right end and is exteriorly threadednear its left end for engagement with the interior threads.42 of theflange 48. .The

'length of .the enclosing member44 is suchv that it can` receive acompletely lled tooth paste tube. The members 38 and 44 serve tocompletely yenclose the tube, andthe said members collectively serve asa supporting means for the housing and the parts carried thereby. The`member 44 constitutes a handle which can .be engaged and held by onehand ofn the user as indicated in Figpl. The housing lo and the partscarried thereby are rotatable relatively to the members 38 and 44, ashereinafter explained, the tube A rotating With the housing within theenclosing member 44.

Each of the toothbrush units 28, 22, 24 and 26 is relatively rotatablein its corresponding housing chamber as previously stated, and it hascylindrical end portions 45 and 46 as shown in Fig. 6 which ilt theinterior of the correspondingv chamber. In order to prevent relativelongitudinal movement of the said units, the said end portions of eachunit are provided with annular grooves 41, 4l and the interior of thecorresponding housing chamber is provided with mating grooves. Rings 48and 49 are entered in the said grooves to prevent relative longitudinalmovement of the toothbrush unit. The rings 48 and 49 also serve assealing members to prevent leakage of tooth paste. The rings 48 and 49may be formed of metal, but if more effective sealing is found necessarythey may be formed of rubber or of a pliable plastic material.

Each toothbrush unit is provided. with a recess 56 open at its left endface 5l and closed at its right end, each recess being of suitable sizeand shape to receive the tufted portion of a.. toothbrush B. The leftend face 5l of each toothbrush unit is preferably in substantialregister with the left end face I3 of the housing i0. When there isa.plurality of toothbrush units, they are intended for use. respectivelyby different members of a household and they therefore havedistinguishing characteristics, as: for instance different. colors so.that each user can recognize hisy own unit. The toothbrush units andalso the other heretofore described parts, except the snap and'. sealingrings.. may advantageously be formed of suitable. plastic. materials.

Each toothbrush unit serves upon. relativev rotation to suctionallyWithdraw tooth paste. from the tube A and through the passageway. 34,36, 3.6 in the:v housing and into the corresponding housing chamber l2,1.4, [6. or' i8', and. each toothbrush unit 26, 2.2, 24 or 26 has meansservingr during relative rotationof the, unit to guide tooth paste fromthe corresponding housing chamber intov the. correspondingv toothbrushrecess 5.0 and onto the toothbrush.r

As shown, each toothbrush unit has. a portion 52 between its cylindricalend portions 45 and 46, the said portion 52 being smaller than the endportions and being eccentrically positioned. The said eccentric portion52 is tangent to the said cylindrical portions, and adjacent theposition of tangency the said toothbrush recess 50 is extended so as tobe open at the periphery of the eccentric portion 52. One wall 54 of therecess 50 extends to the periphery at or near the position of tangencyand the.v opposite Wall 56 is shorter and is connected by a rounded wall58 with the periphery of the eccentric portion The rounded wall 53provides a relatively wide space between the eccentric portion and theinterior wall of the chamber.

Each chamber in the housing IU is provided with a longitudinal grooveclosely adjacent the corresponding holes 36, 36. The length of thegroove is the same as the length of the smaller eccentric portion 52 ofthe toothbrush unit. A sealing member or seal 60, which is preferably arubber tube, is entered in the last-described groove, the length of thesealing member being equal to the length of the eccentric portion 52 ofthe toothbrush unit. The sealing member 60 is of such size and is sopositioned that it will at all times engage with the surface of theeccentric portion 52 of the toothbrush unit, being collapsed to variousextents for diierent relative rotative positions of the unit.

Preparatory to use the tube enclosing member 44 is removed and the usualthreaded cap o f the tube A is removed and discarded. The tube isscrewed into place as shown in Fig. 3, being held by the threads at 38.Then the tube is squeezed '4 sufciently to force toothpaste therefrom ina suicient amount to completely ll the central hole 34 and thetransverse holes 36, 36. Then the tube enclosing member 44 is screwedinto position as shown.

In use the tube enclosing member or handle 44 is grasped and held by onehand of the user as shown in Fig. l, the dispenser preferably being sopositioned that the toothbrush unit designated for the particular useris at the bottom. The toothbrush B is inserted in the bottom unit and isgrasped by the other hand of the user as shown in Fig. l. rhen the user,while preventing rotation of the toothbrush, gives it an eccentricmotion in the counterclockwise direction as viewed froml the right, thiseccentric movement of the toothbrush. serving to rotate the housing Hlrelatively to the enclosing member or handle 44. inasmuchas thetoothbrush is held against rotation, the corresponding toothbrush unitis held against rotation but due to the described circular movement ofthe toothbrush the housing is rotated as stated. and the housing partsadjacent the' selected toothbrush unit rotate around it.

The bottom portion of Fig. 4 shows the starting. position and Figs. 8.9, 10 and 11 show successive relative positions during one rotation ofthe housing. During relative rotation tooth paste is Withdrawn bysuction from the tube A and through the holes 34, 36, 36 into thecorresponding chamber l2. In moving from the Fig. 4 position tov theFig. 8 position there is little or no suction, but in moving from theFig. 8 position to the Fig. 9 position the space at the left of thevholes 3.6, 36 is lled with tooth paste as the result of suc-tion. Theseal S prevents the entry of air into the said space. The action inmoving from the Fig. 9 position to the Fig. 10 position is the same asthat previously described and the space below and at the left of theholes 2B is iilled with tooth paste. When movement takes place slightlybeyond the Fig. l0 position, the seal G no longer engages the eccentricportion 52 and there is no further suction action. However, some of thetooth paste adheres to the Wall of the recess and is moved therewithduring movement to the Fig. l1 position.

The eccentric movement of the toothbrush is continued to cause anothercomplete revolution of the housing as indicated in Figs.. 12 to 15.During theA second revolution, the suction action is exactly the same aspreviously described. However, some of the tooth paste already withinthe chamber i2 and surrounding the eccentric portion 52 is movedcounterclockwise with the wall of the chamber l2; such movement beingassisted by the seal 60. The. tooth paste so moved impinges upon thewall 54 of the toothbrush recess 50 and the said wall serves to guidethe said paste intov the said recess and onto the toothbrush. When theFig. 15 position is reached the toothbrush is Withdrawn from the recesswith a layer of tooth paste thereon.

The described two revolutions are necessary only for the initialapplication of tooth paste to a toothbrush in each unit. After the rstapplication there is a body of tooth paste already in position as shownin Fig. 15.. The rst revolution serves for priming and after that onlyone revolution is necessary for each application of tooth paste to the.brush.

The operation has been described as to one toothbrush unit and it is thesame as to the others. Obviously, only one unit is operative at any onetime. For each unit two revolutions 'are necessary initially, butthereafter one revolution is ordinarily sufficient. When the dispenseris not in use it is preferably placed on a flat surface with the end ofthe housing engaging the said surface. When a rib such as I9 isprovided, the dispenser is supported by the said rib. This prevents thecirculation of air through the toothbrush recesses, thus eliminating anydeposits of dust and minimizing any possible tendency of the exposedtooth paste to harden.

Fig. 16 shows an alternative yconstruction differing somewhat from thepreviously described construction. A housing 62 is provided which is ormay be identical in construction with the housing i0, except that it hasa somewhat different hub 64. The parts carried by the housing 62 may bethe same as those carried by the housing I0.

A member 66 is provided which is generally similar to the member 30. Themember 66 has a bearing aperture for the hub 64, and a ring 68 similarto the ring 32 is provided to prevent relative longitudinal movement.The ring 68 may also serve as a seal to prevent the escape of toothpaste. The said member 66 has a longitudinal extension 'l0 provided witha central hole 12 therein which registers with the central hole 34 inthe housing 62. The hole 12 is interiorly threaded to receive and fitthe threaded end of the tooth paste tube A. It Will be observed that thetube A is carried by the nom'otatable member 66 and therefore is notrotatable with the housing 62.

The member 66 is provided with a peripheral flange 'I4 which isinteriorly threaded at 16. A cylindrical tube enclosing member 18 isprovided which is generally similar to the member 44. The said member 18is exteriorly threaded near its left end for engagement with theinterior threads 'I6 of the ange 14. The member 'I8 has the samefunctions as the member 44, but it diiTers in that it is formed of asuitable exible or pliable material. A suitable check valve 80 iscarried by the member 66. The said check valve prevents the escape ofair from the space within the members 66 and 78, but it permits air toreadily enter the said space.

The manner of use of the dispenser shown in Fig. 16 is the same asalready described, except that the flexible or pliable member 18 whengrasped and squeezed by the hand of the user develops pneumatic pressurewithin the said member which is applied to the exterior of the enclosedtube A. This pneumatic pressure on the tube tends to cause paste to movefrom the tube through the holes 34 and 36, 36 in the housing, thusfacilitating the described suctional action of each tooth paste unit.When the pressure on the member 18 is released, air can ow into thespace within the said member through the check valve 86.

The invention claimed is:

l. In a tooth paste dispenser, the combination of a housing having acylindrical chamber open at one face thereof which housing has apassageway therein communicating with one side of the said chamber andadapted at one end for connection with the threaded discharge portion ofa tooth paste tube, a toothbrush unit relatively rotatable in thehousing chamber` and having a longitudinal recess open at the endthereof adjacent the said face of the housing which recess is of suchsize and shape as to receive the tufted end of a toothbrush, meansserving upon relative rotation between the toothbrush unit, and

`the housing for suctionally withdrawing tooth paste from the tube andthrough the passageway in the housing and into the housing member, andmeans on the toothbrush unit serving during relative rotation to guidetooth paste from the housing chamber into the said toothbrush recess andonto a toothbrush therein.

2. In a tooth paste dispenser, the combination of a housing having acylindrical chamber open at one face thereof which housing has apassageway therein communicating with one side of the said chamber andadapted at one end for ccnnection with the threaded discharge portion ofa tooth paste tube, a toothbrush unit relatively rotatable in thehousing chamber and fitting at its end portions with the interior wallof the chamber, the said unit having an eccentric portion between itsend portions and the said unit having a, longitudinal recess open at theend thereof adjacent the said face of the housing which recess is ofsuch size and shape as to receive the tufted end of a toothbrush andwhich recess at its interior portion is open at the eccentric portion ofthe unit, sealing means carried by the housing and engaging theeccentric portion of the unit during relative rotation to cause the saideccentric portion during the said relative rotation to suctionallywithdraw tooth paste from the tube and through the passageway in thehousing and into the housing charnber, and means on the toothbrush unitserving during relative rotation to guide tooth paste from the housingchamber into the said toothbrush recess and onto a toothbrush therein. Y

3. In a tooth paste dispenser, the combination of a housing having acylindrical chamber open at one face thereof which housing has apassageway therein communicating with one side of the said chamber andadapted at one end for connection with the threaded discharge portion ofa tooth paste tube, a housing supporting member positioned to surroundthe tooth paste tube, a toothbrush unit relatively rotatable in thehousing chamber and having a longitudinal recess open at the end thereofadjacent the said face of the housing which recess is of such size andshape as to receive the tufted end of a toothbrush, means serving uponrelative rotation between the toothbrush unit and the housing forsuctionally withdrawing tooth paste from the tube and through thepassageway in the housing and into the housing member, and means on thetoothbrush unit serving during relative rotation to guide tooth pastefrom the housing chamber into the said toothbrush recess and onto atoothbrush therein.

4. In a tooth paste dispenser, the combination of a housing having aplurality of cylindrical chambers each open at one face thereof whichhousing is provided with a passageway therein adapted at one end forconnection with the threaded discharge portion of a tooth paste tube andhaving a plurality of branches communicating respectively with the sidesof the said chambers, a plurality of similar toothbrush units relativelyrotatable respectively in the housing chambers and each having alongitudinal recess open at the end thereof adjacent the said face ofthe housing which recess is of such size and shape as to receive thetufted end of a toothbrush, a plurality of means each serving uponrelative rotation between the corresponding toothbrush unit and thehousing for suctionally withdrawing tooth paste from the tube andthrough the corresponding branch of the passageway in the housing andinto the correspond- 111s. haleine member, and: a pluralityA or, meanson therespecti-ve toothbrush units each serving during relative rotationof thel corresponding unit toguidetooth paste from the correspondinghousing chamber into the` corresponding toothbrush recess and onto atoothbrush therein` 5. In a tooth paste dispenser, the combination of ahousing having av plurality of cylindrical chambersv each open at oneface thereof which housing is provided with a passageway therein adaptedat. one end for connection with the threaded discharge portion of atooth paste tube and having` av plurality of branches communicatinglrespectively with the sides of the said chambers, a plurality of similartoothbrush units relatively rotatable respectively in the housingchambers and each fitting at its end portions with the interior wall ofthe corresponding chamber, each said unit having an eccentric portionbetween its end portions and the said unit having a longitudinal recessopen at the end thereof adjacent the said face of the housing whichrecess is of such size and shape as to receive the tufted end of atoothbrush and which recess at its interior portion is open at theeccentric portion of the unit, a. plurality of sealing means carried bythe housing and each engaging the eccentric portion of the correspondingunit during rela tive rotation to cause the said eccentric portionduring the said relative rotation to suctionally withdraw tooth `pastefrom the tube and through the corresponding branch of the passageway inthe housing and into the corresponding housing chamber, and a pluralityof means on the respective toothbrush units each serving during relativerotation of the corresponding unit to guide tooth paste from thecorresponding housing chamber into the corresponding toothbrush recessand onto a toothbrush therein.

6. In a tooth paste dispenser, the combination o supporting means, ahousing rotatable relatively to the supporting means and having aplurality of similar cylindrical chambers parallel to the axis ofrotation and spaced therefrom each of which chambers is open at one faceof the housing, the said housing having a passageway therein whichpassageway includes a central hole adapted at one end for connectionwith the threaded discharge portion of a tooth paste tube and alsoincludes branch holes extending from the central hole and communicatingrespectively with the sides of the said chambers, a plurality of similartoothbrush units relatively rotatable respectively in the housingchambers and each having a longitudinal recess open at -the end thereofadjacent the said face of the housing which recess is of such size andshape as to receive the tufted end of a toothbrush, each said toothbrushunit when engaged by a toothbrush serving as a means for rotating thehousing relatively to the supporting means with the engaged unit held bythe toothbrush i against. rotative movement, a plurality of means eachserving upon relative rotation of the adjacent housing portions aroundthe corresponding toothbrush unit for suctionally withdrawing toothpaste from the tube and through the corresponding branch holes in thehousing and into the corresponding housing chamber, and a plurality ofmeans on the respective toothbrush units each serving during relativerotation of the adjacent housing; portions around the corresponding unitto guide tooth paste from the corresponding housing chamber into thecorresponding toothbrush recess and onto a toothbrush therein.

7. In a tooth paste dispenser, the Combination a housing. rotatablerelativelyto the supporting means and having a plurality of similarcylindrical chambers parallel to the axis oi rotation and spacedtherefrom each of which chambers is openat one face of the housing, thesaid housing having a passageway therein which passageway includes acentral hole adapted at one end for connectionV with the threadeddischarge portion of a tooth paste tube and also includes branch holesextending from the central hole and communicating respectively with thesides of the said chambers, a plurality of similar toothbrush unitsrelatively rotatable respectively in the housing chambers and eachfitting at its end portions with the interior wall of the correspondingchamber and each having an eccentric portion between its end portionsand also having a longitudinal recess open at the end thereof adjacentthe said face of the housing which recess is of such size and shape asto receive the tufted enclA of a toothbrush and which recess at itsinterior portion is open at the eccentric portion of the unit, each-said toothbrush unit when engaged by a toothbrush serving as a meansfor rotating the housing relatively to the supporting means with theengaged unit held by the toothbrush against rotative movement, aplurality of sealing means carried by the housing and each engaging theeccentric portion of the corresponding unit during relative rotation ofthe adjacent housing portions around the corresponding toothbrush unitfor causing the said eccentric portion to suctionally withdraw toothpastefrom the tube and through the corresponding branch holes in thehousing and into the corresponding housing chamber, and a plurality ofvmea-ns on the respective toothbrush units each serving during relativerotation of the adjacent housing portions around the corresponding unitto guide tooth paste from the corresponding housing chamber into thecorresponding toothbrush recess and onto a toothbrush therein.

8. In a tooth paste dispenser, the combination of supporting meansincluding a hollow handle, a housing rotatable relatively to thesupporting means about an axis extending through the said handle whichhousing has a plurality of similar cylindrical chambers parallel to theaxis of rotation and spaced therefrom each of which chambers is open atone face of the housing, the said housing having a passageway thereinwhich passageway includes a central hole adapted at one end forconnection with the threaded discharge portion of a tooth paste tubelocated within the hollow handle and also includes branch holesextending from the central hole and communicating respectively with thesides of the said chambers, a plurality of similar toothbrush unitsrelatively rotatable respectively in the housing chambers and eachhaving a longitudinal recess open at the end thereof adjacent the saidface of the housing which recess is of such size and shape as to receivethe tufted end of a toothbrush, each said tooth brush unit when engagedby a toothbrush serving as a means for rotating the housing relativelyto the supporting means with the engaged unit held by the toothbrushagainst rotative movement, a plurality of means each serving uponrelative rotation of the adjacent housing portions around thecorresponding toothbrush unit for suctionallywithdrawing tooth pastefrom. the tube and through the corresponding branch holes in the housingand into the corresponding housing chamber, and a plurality of means onthe respective. toothbrush units each serving during -8 or supportingmeans aesaa'ri relative rotation of the adjacent housing portions aroundthe corresponding unit to guide tooth paste from the correspondinghousing chamber into the corresponding toothbrush recess and onto atoothbrush therein.

9. In a tooth paste dispenser, the combination of a housing having acylindrical chamber open at one face thereof which housing has apassageway therein communicating with one side of the said chamber andadapted at one end for connection with the threaded discharge portion ofa tooth paste tube, a toothbrush unit relatively rotatable in thehousing chamber and having a longitudinal recess open at the end thereofadjacent the said face of the housing which recess is of such size andshape as to receive the tufted end of a toothbrush, means serving uponrelative rotation between the toothbrush unit and the housing forsuctionally withdrawing tooth paste from the tube and through thepassageway in the housing and into the housing member, means on thetoothbrush unit serving during relative rotation to guide tooth pastefrom the housing chamber into the said toothbrush recess and onto atoothbrush therein, and means for enclosing the tooth paste tube forapplying pneumatic pressure thereto during relative rotation between thetoothbrush unit and the housing which pneumatic pressure facilitates thesuctional withdrawal of tooth paste from the tube.

l0. In a tooth paste dispenser, the combination of a housing` having acylindrical chamber open at one face thereof which housing has apassageway therein communicating with one side of the said chamber andadapted at one end for connection with the threaded discharge portion ofa tooth paste tube, a housing support comprising a hollow member with aclosed chamber therein adapted to enclose the tooth paste tube whichhollow member is formed of pliable material and serves when squeezed toapply pneumatic pressure to the exterior of the tube to thereby tend toforce paste therefrom, a toothbrush unit relatively rotatable in thehousing chamber and having a longitudinal recess open at the end thereofadjacent the said face of the housing which recess is of such size andshape as to receive the tufted end of a toothbrush, means serving uponrelative rotation between the toothbrush unit and the housing forsuctionally withdrawing tooth paste from the tube and through thepassageway l0 in the housing and into the housing member, and means onthe toothbrush unit serving during relative rotation to guide toothpaste from the housing chamber into the said toothbrush recess and ontoa toothbrush therein.

1l. In a tooth paste dispenser, the combination of a supporting member,a housing rotatable relatively to the supporting member and having aplurality of similar cylindrical chambers parallel to the axis ofrotation and spaced therefrom each of which chambers is open at one faceof the housing, the said housing having a passageway therein which.passagewayv includes a central hole adapted at one end for connectionwith the threaded discharge portion of a tooth paste tube and alsoincludes branch holes extending from the central hole and communicatingrespectively with the sides of the said chambers, a plurality of similartoothbrush units relatively rotatable respectively in the housingchambers and each having a longitudinal recess open at the end thereofadjacent the said face of the housing which recess is of such size andshape as to receive the tufted end of a toothbrush, each said toothbrushunit when engaged by a toothbrush serving as a means for rotating thehousing relatively to the supporting means with the engaged unit held bythe toothbrush against rotative movement, a plurality of means eachserving upon relative rotation of the adjacent housing portions aroundthe corresponding toothbrush unit for suctionally withdrawing toothpaste from the tube and through the corresponding branch holes in thehousing and into the corresponding housing member, a plurality of meanson the respective toothbrush units each serving during relative rotationof the adjacent housing portions around the corresponding unit to guidetooth paste from the corresponding housing chamber into thecorresponding toothbrush recess and onto a toothbrush therein, and ahollow member connected with the said supporting member and having anenclosed chamber therein within which the said tooth paste tube islocated, the said hollow member being formed of pliable material andserving when squeezed to apply pneumatic pressure to the exterior of thetube to force paste therefrom.

PAUL M. BRYANT.

No references cited.

